

Gatekeeper, first introduced in OS X Mountain Lion, is a Mac security feature which prevents the user from launching potentially harmful applications.In macOS Sierra, however, Apple made some important changes to Gatekeeper that seemingly limit the choices of power users.

Note: This method may not work for applications. Disabling Gatekeeper for one application only Using Finder. Enter your administrator password when requested. Run the following command: sudo spctl -master-disable.

Open a terminal by pressing Cmd + Space, enter Terminal and open the application. 2.Head over to the ' System Preferences ' and then to ' Security and Privacy. Here is a step-by-step guide on how to disable Gatekeeper temporarily: 1.Click on the App that you have downloaded from a third-party developer you will not be able to open the application and will be blocked automatically. Home Disable gatekeeper How to Disable Gatekeeper in Your MacOS Catalina - iStarTip
